| 摘要 |
<p>A charge pump includes a first voltage input end (Vin), a second voltage input end, a voltage output end (Vout), at least a fast capacitor (CF), an energy storing capacitor(CR) and a first group of MEMS switches(S11), a second group of MEMS switches(S12), a third group of MEMS switches(S21). The three groups of MEMS switches are controlled by control signals. The fast capacitor is connected to the first voltage input end and the second voltage input end through the first group of MEMS switches, and connected to the first voltage input end or the second voltage input end through the second group of MEMS switches. The energy storing capacitor is connected to the fast capacitor through the third group of MEMS switches and to the voltage output end. The energy storing capacitor is also connected to the second voltage input end. The fast capacitor is charged through the first and the second voltage input ends when the control signals control the first group of the MEMS switches to be closed and the second and the third groups of the MEMS switches to be opened. The energy storing capacitor is charged through the fast capacitor and the second voltage input ends when the control signals control the first group of the MEMS switches to be opened and the second and the third groups of the MEMS switches to be closed. The charge pump improves energy converting efficiency and reduces power consumption.</p> |
